JP2003019142A - Medical driver - Google Patents
Medical driverInfo
- Publication number
- JP2003019142A JP2003019142A JP2001205284A JP2001205284A JP2003019142A JP 2003019142 A JP2003019142 A JP 2003019142A JP 2001205284 A JP2001205284 A JP 2001205284A JP 2001205284 A JP2001205284 A JP 2001205284A JP 2003019142 A JP2003019142 A JP 2003019142A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- joint
- driver
- socket
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1622—Drill handpieces
- A61B17/1624—Drive mechanisms therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転子と、回転子
に回転力を与える回転部材を有する操作部とから成り、
回転部材の軸に対して回転子軸を所望の角度交差した関
係とし、かつ継手により回転子と回転部材とを接続した
医療用ドライバーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a rotor and an operating portion having a rotating member for applying a rotating force to the rotor,
The present invention relates to a medical driver in which a rotor shaft intersects a shaft of a rotary member at a desired angle and a rotor and a rotary member are connected by a joint.
【０００２】[0002]
【従来の技術】例えば椎骨に植立したインプラントをロ
ッドを用いて結合する、というような手術では、固定ね
じを締め付ける作業を迅速に行うための工具が必要にな
る。このような場合、切開されている人体組織の間から
部材を配置し、ねじを締め付ける作業となるので、１３
５度ドライバーなどと称する首の曲がったドライバーが
使用されて来た。この種の医療用ドライバーはドライバ
ーの柄杆の軸に対して先端のドライバーが４５度起き上
がり、内角が１３５度となるように設けてあり、真っ直
ぐなドライバーを差し込みにくいような場合に優れた作
業性を発揮する。2. Description of the Related Art In a surgical operation in which an implant implanted in a vertebra is connected by using a rod, a tool for quickly tightening a fixing screw is required. In such a case, it is necessary to arrange the members between the incised human tissues and tighten the screws.
A driver with a bent neck, called a 5 degree driver, has been used. This type of medical driver is installed so that the tip of the driver rises 45 degrees to the shaft of the handle rod of the driver so that the internal angle is 135 degrees, which is excellent workability when it is difficult to insert a straight driver. Exert.
【０００３】１３５度ドライバーは、先端のドライバー
部分を回転させるための機構を内蔵し、柄の手許の方の
操作によってねじを締め付け或いは緩めることができる
ようになっている。そのために従来のものは操作側の回
転軸と、これに対して４５度起き上がったドライバー側
回転子とを何らかのジョイントを用いて接続し、トルク
を伝達する。従来見られたジョイントには、ボールポイ
ントレンチとそのソケットの組み合わせが一般的であっ
た。しかし、１組のボールポイントレンチとソケットか
ら成るジョントは、実公平６−１６６４９号に示された
ような原理を有しており、レンチ（スパナ）側のボール
ポイントレンチとボルト穴壁面との接触によりトルク伝
達を行うものである。このため１組のジョイントでは起
き上がり角度を４５度も取ること自体に無理があり、操
作性がスムーズでなくゴリゴリ音がする上、摩耗により
金属粉が出易いというような問題があった。The 135 degree screwdriver has a built-in mechanism for rotating the driver portion at the tip, and the screw can be tightened or loosened by the operation of the hand of the handle. For this reason, in the related art, the rotary shaft on the operating side and the driver-side rotor raised by 45 degrees with respect to the rotary shaft are connected using some kind of joint to transmit torque. A combination of a ball point wrench and its socket has been commonly used in joints that have been found in the past. However, Jonto, which consists of a set of ball point wrench and socket, has the principle as shown in Japanese Utility Model Publication No. 6-16649, and the ball point wrench on the wrench (spanner) side and the bolt hole wall surface contact. The torque is transmitted by. For this reason, it is impossible to obtain a rising angle of 45 degrees with one set of joints, and the operability is not smooth and there is a rattling noise, and metal powder easily comes out due to wear.
【０００４】[0004]
【発明が解決しようとする課題】本発明は前記の点に着
目してなされたもので、その課題は回転部材の軸に対し
て回転子軸を１３５度若しくはその他の所望の角度交差
した関係において、スムーズな操作性が得られる医療用
ドライバーを提供することである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and its problem is in a relation that the rotor shaft intersects with the shaft of the rotating member by 135 degrees or any other desired angle. The purpose is to provide a medical driver with smooth operability.
【０００５】[0005]
【課題を解決するための手段】前記の課題を解決するた
め本発明は、回転子と、回転子に回転力を与える回転部
材を有する操作部とから成り、回転部材の軸に対して回
転子軸を所望の角度交差した関係とし、かつ継手により
回転子と回転部材とを接続した医療用ドライバーについ
て、継手として、回転子と回転部材の両端にソケットを
夫々設けるとともに、夫々のソケットと係合することに
よって回転力を伝達可能な両頭の相手係合部を有する継
手部材を組み合わせるという手段を講じたものである。In order to solve the above-mentioned problems, the present invention comprises a rotor and an operating portion having a rotating member for applying a rotating force to the rotor, and the rotor with respect to the axis of the rotating member. Regarding a medical driver in which the shafts have a relationship intersecting at a desired angle and a rotor and a rotary member are connected by a joint, sockets are provided at both ends of the rotor and the rotary member as joints, and the sockets engage with each other. By doing so, a means for combining joint members having both-sided mating engaging portions capable of transmitting the rotational force is taken.
【０００６】[0006]
【発明の実施の形態】本発明に係る医療用ドライバー
は、回転子と、回転子に回転力を与える回転部材を有す
る操作部とから成り、回転部材の軸に対して回転子軸が
所望の角度交差した関係を持つものである。回転部材の
軸心と回転子の軸心とが交差関係にあるので、継手を用
いて回転子と回転部材とが接続される。BEST MODE FOR CARRYING OUT THE INVENTION A medical driver according to the present invention comprises a rotor and an operating portion having a rotating member for applying a rotating force to the rotor, and a rotor shaft having a desired rotor shaft with respect to the shaft of the rotating member. It has a relationship that intersects at an angle. Since the axis of the rotating member and the axis of the rotor are in an intersecting relationship, the rotor and the rotating member are connected using a joint.
【０００７】ところで、回転子に回転力を与える回転部
材は、操作部の一部分であり、操作部を手で保持するグ
リップの側とする場合、回転部材は、回転させる摘みの
側とする。また操作部は外筒の形態を取るのに対して、
回転軸は外筒に内挿された軸の形態を取ると言うことも
できる。ここまでの構成は従来の所謂１３５度ドライバ
ーと一致していても良い。このようなドライバーについ
て、従来の１組のジョントを次のような継手によって置
き換えることにより、前記の課題を達成することができ
る。By the way, the rotating member for applying a rotating force to the rotor is a part of the operating portion, and when the operating portion is on the side of the grip that is held by hand, the rotating member is on the side of the knob for rotating. Also, while the operating part takes the form of an outer cylinder,
It can also be said that the rotating shaft takes the form of a shaft inserted in the outer cylinder. The configuration up to this point may be the same as the conventional so-called 135 degree driver. For such a driver, the above-mentioned problems can be achieved by replacing a conventional set of joints with the following joints.
【０００８】本発明に係る医療用ドライバーは、継手と
して、回転心と回転部材の両軸端にソケットを夫々設け
るとともに、夫々のソケットと係合することによって回
転力を伝達可能な両頭の相手係合部を有する継手部材を
組み合わせるという構成を有する。例えば、前記ジョイ
ントの考案におけるボールポイントレンチとソケットも
本発明における継手として適用し得るが、本発明ではこ
れを、ボールポイントレンチを継手部材の両端に設けて
両頭とし、夫々のボールポイントレンチに係合可能なソ
ケットを回転子の軸端と回転部材の軸端に設けて２組と
しなければならない。In the medical driver according to the present invention, sockets are provided as joints at both axial ends of the rotary core and the rotary member, and the two-headed counterparts capable of transmitting the rotational force by engaging with the respective sockets. It has the composition which combines a joint member which has a joint. For example, the ball point wrench and the socket in the invention of the joint can be applied as the joint in the present invention, but in the present invention, the ball point wrench is provided at both ends of the joint member to make it double-headed, and it is related to each ball point wrench. Mating sockets must be provided at the shaft end of the rotor and the shaft end of the rotating member to form two sets.
【０００９】これによって継手の片方の部分における角
度変化は、継手全体が目的とする交差角度の２分の１で
良いことになり、係合に余裕を生じてよりダイレクト感
の高いトルク伝達が可能になる。また相対的な動きがな
くなるので、ゴリゴリ感が消失し、摩耗による金属粉の
発生という問題も解消する。つまり、１３５度ドライバ
ーが安心して使用できるものとして完成する。As a result, the angle change in one part of the joint can be half of the intended intersection angle of the entire joint, and there is a margin in the engagement to enable more direct torque transmission. become. Further, since there is no relative movement, the rugged feeling disappears, and the problem of generation of metal powder due to wear is solved. In other words, it is completed as a product that can be safely used by 135 degree drivers.
【００１０】継手の、より理想的な形態としては、頭部
を球状とし、かつその球状頭部の直径方向に継手部材の
軸と直交する方向のピンを設けた継手部材と、球状頭部
を受け入れる凹部を有し、かつ凹部壁面にピンの係合が
可能な軸方向溝を設けたソケットを組み合わせたもの
を、適用することができる。この形態を有する継手は、
六角レンチ構成を用いる前記のものと大きさにおいて差
がなく、加工的にはむしろ容易であり、しかもトルク伝
達効率が優れており、ゴリゴリ感はなく、金属粉の問題
からも解放される。As a more ideal form of the joint, the head has a spherical shape, and the spherical head has a spherical shape with a pin having a pin extending in a direction orthogonal to the axis of the joint. It is possible to apply a combination of sockets having a concave portion for receiving and a wall surface of the concave portion provided with an axial groove in which a pin can be engaged. A joint with this form is
There is no difference in size from the one using the hexagonal wrench structure, it is rather easy in processing, the torque transmission efficiency is excellent, there is no rugged feeling, and the problem of metal powder is released.
【００１１】回転子は先端にドライバー部分を一体に有
しているものであっても良い（図１等参照）。ドライバ
ー部分を一体に有する回転子は、継手を構成するソケッ
トをも有している。また別体のドライバービットを着脱
交換可能にしたものであっても良い（図５等参照）。別
体のドライバービットを着脱する回転子にあっては、継
手を構成するソケットを有し、かつまたドライバービッ
トの着脱のための構成手段をも有している。ドライバー
部分を一体に有している回転子を用いるものに比較し
て、別体のドライバービットを着脱する回転子を用いる
ものは、継手部よりも先の寸法が長くなり過ぎる傾向を
持ち、その結果、回転力の伝わり方のダイレクト性が損
われ勝ちになるので、寸法の長短、着脱の嵌め合い性の
設計には注意を要する。The rotor may have a driver portion integrally at the tip (see FIG. 1 etc.). The rotor having the driver portion integrally also has a socket forming a joint. Alternatively, a separate driver bit may be detachable and replaceable (see FIG. 5, etc.). A rotor for attaching / detaching a separate driver bit has a socket that constitutes a joint, and also has a component for attaching / detaching the driver bit. Compared with the one using a rotor that has a driver part integrally, the one using a rotor to which a separate driver bit is attached / detached tends to be too long in dimension ahead of the joint part. As a result, the directness of how the rotational force is transmitted tends to be impaired, so care must be taken in designing the long and short dimensions and the fitting property of attachment and detachment.
【００１２】先端にドライバー部分を一体に有する回転
子は、ドライバー部分の形態の異なる回転子を何種か用
意し、交換可能とすることができる。この場合、回転子
は他軸端のソケットにおいて継手をも構成しているの
で、回転子を止めておく組み立てナットを着脱すること
がドライバー部分の交換の際に必要となる。これに対し
て、別体のドライバービットを着脱交換可能とした場合
には、回転子の先端（外方端）にドライバービットの着
脱用ソケットを設けておけば、回転子を外さなくてもド
ライバービットを容易に交換することができる。交換可
能なものはドライバービットに限られず、例えばインプ
ラント用骨ねじなども、着脱用ソケットに装着可能であ
る。The rotor having the driver portion integrally formed at the tip thereof may be replaceable by preparing several kinds of rotors having different driver portions. In this case, since the rotor also constitutes a joint in the socket at the other shaft end, it is necessary to attach / detach the assembly nut that holds the rotor when exchanging the driver portion. On the other hand, if a separate driver bit can be attached / detached and replaced, a driver bit attachment / detachment socket can be provided at the tip (outer end) of the rotor to enable the driver to be removed without removing the rotor. Bits can be easily exchanged. The replaceable item is not limited to the driver bit, and, for example, a bone screw for implant or the like can be attached to the detachable socket.
【００１３】[0013]
【実施例】以下、図示の実施例を参照して本発明をより
詳細に説明する。図１ないし図４は、本発明に係る医療
用ドライバー１０の実施例１を示しており、図１の全体
図には、複数個の回転子１１１ 、１１２ …と、組み合
わされた回転子に回転力を与える機構を内蔵した操作部
１２とが示されている。The present invention will be described in more detail below with reference to the illustrated embodiments. 1 to 4 show a first embodiment of a medical driver 10 according to the present invention. In the overall view of FIG. 1, a plurality of rotors 11 1 , 112 2, ... The operation unit 12 having a built-in mechanism for applying a rotational force is shown.
【００１４】回転子１１１ に回転力を与える回転部材
１３は、操作部１２の本体１５というべき外筒の内部に
配置されている軸状部材であり、その先端に回転子１１
１との継手部が設けられ、他端には回転操作のための摘
み１４が設けられている。本体１５には保持のためにグ
リップ部１６が設けられ、操作部１２と摘み部１４との
間にはワッシャ１７が介装されている。[0014] Rotation member 13 to provide a rotational force to the rotor 11 1 is a shaft-like member which is disposed inside the outer cylinder to say the body 15 of the operation portion 12, the rotor 11 at its distal end
1 and a knob 14 for rotating operation is provided at the other end. The main body 15 is provided with a grip portion 16 for holding, and a washer 17 is interposed between the operation portion 12 and the knob portion 14.
【００１５】回転部材１３の先端には凹状のソケット１
８が継手２０の一部として設けられており、このソケッ
ト１８は六角レンチ型のボールポイント２１と係合可能
な六角形状の係合面１９によって構成されている。内方
のソケット１８はボールポイントから成る相手係合部２
１を受け入れてがたなく係合することにより、ボールポ
イント側継手部材２２の軸を回転部材１３の軸に対して
傾斜可能にするとともに、トルク伝達を可能にしてい
る。継手部材２２は同様のボールポイントから成る相手
係合部２１′を他端にも有する両頭のものであり、この
相手係合部２１′を受け入れる外方のソケット１８′は
回転子１１１ …の基端側の軸端面に形成されている。A concave socket 1 is provided at the tip of the rotating member 13.
8 is provided as a part of the joint 20, and the socket 18 is constituted by a hexagonal engaging surface 19 that can engage with a hexagonal wrench type ball point 21. The inner socket 18 is a mating engaging portion 2 composed of ball points.
By accepting 1 and engaging with each other without delay, the shaft of the ball point side joint member 22 can be inclined with respect to the shaft of the rotating member 13 and torque can be transmitted. The joint member 22 is a double-headed one that also has a mating engaging portion 21 'composed of similar ball points at the other end, and the outer socket 18' for receiving this mating engaging portion 21 'is of the rotor 11 1 . It is formed on the shaft end surface on the base end side.
【００１６】継手部材２２の相手係合部２１′と外方の
ソケット１８′とが係合した状態及び位置に回転子１１
１ を回転可能に配置するために、組み立てナット２３
が本体１５の先端に取り付けられている。組み立てナッ
ト２３は、回転子１１１ …を交換する際に着脱される
部品である。When the mating engaging portion 21 'of the joint member 22 and the outer socket 18' are engaged and positioned, the rotor 11
In order to rotatably position 1 the assembly nut 23
Is attached to the tip of the main body 15. The assembly nut 23 is a component that is attached / detached when the rotor 11 1 ... Is replaced.
【００１７】本体１５は継手２０を設けた部分において
内角が１４０度となるように４０度曲げられているが、
これは予め加工しておいた本体パイプを継手組立後に溶
接することによって接合したものである。符号２４は溶
接部分を示す。また、本体先端方の側面には、手術中に
入り込んだ血液その他の体液を抜くための小孔２５が設
けられる。The main body 15 is bent by 40 degrees so that the internal angle becomes 140 degrees at the portion where the joint 20 is provided.
This is a body pipe that has been processed in advance and is joined by welding after assembling the joint. Reference numeral 24 indicates a welded portion. In addition, a small hole 25 for removing blood or other body fluid that has entered during the operation is provided on the side surface of the front end of the main body.
【００１８】実施例１の医療用ドライバー１０では、適
当な回転子１１１ …を本体１５の先端に組立ナット２
３を用いて組み付け、組み付けが終わるとき、回転子１
１１、１１２ のソケット１８′と継手部材１１の相手
係合部２１′とが正しい係合状態に組み合わされる（図
４（ａ）、（ｂ）参照）。ナット２３を締め付けたとき
に継手２０が正しく組み立てられ、摘み１４の回転操作
によって回転子１１１、１１２ を円滑に回転させるこ
とができるが、実施例１では継手部分から先には回転子
１１１ …だけがあり、回転子１１１ 、１１２ は、先
端にドライバー部分２６１ 、２６２ を一体に有してい
るので、摘み操作に伴う回転力はダイレクトにドライバ
ー部分２６１ 、２６２ 及び図外のねじなどに伝達され
ることとなる。In the medical driver 10 according to the first embodiment, a proper rotor 11 1 is attached to the tip of the main body 15 and the nut 2 is assembled.
Assemble using 3 and when the assembly is finished, the rotor 1
1 1, 11 2 of the socket 18 'and the mating engagement portion 21 of the joint member 11' and are combined in the correct engagement (see FIG. 4 (a), (b) ). The joint 20 is correctly assembled when the nut 23 is tightened, and the rotors 11 1 and 11 2 can be smoothly rotated by the rotating operation of the knob 14. However, in the first embodiment, the rotor 11 is moved from the joint portion first. 1 ... There are only the rotor 11 1, 11 2, so integrally has a driver portion 26 1, 26 2 to the tip, the rotational force caused by the knob operation the driver portion 26 1 directly, 26 2 and It will be transmitted to screws and the like outside the figure.
【００１９】図５ないし図８は、本発明に係る医療用ド
ライバー３０の実施例２を示しており、図５には先端に
組み込まれた回転子３１と、回転子３１に回転力を与え
る機構を内蔵した操作部３２とから成る全体が示されて
いる。FIGS. 5 to 8 show a second embodiment of the medical driver 30 according to the present invention. In FIG. 5, a rotor 31 incorporated at the tip and a mechanism for giving a rotational force to the rotor 31 are shown. Is shown in its entirety.
【００２０】回転子３１に回転力を与える回転部材３３
は、操作部３２の本体３５である外筒の中に内挿されて
いる軸状部材であり、その先端に回転子３１と継手部が
設けられ、他端には回転操作のための摘み３４が設けら
れている。本体３５には保持のためにグリップ部３６が
設けられ、またワッシャ３７も操作部３２と摘み３４と
の間に介装されている。A rotating member 33 that applies a rotating force to the rotor 31.
Is a shaft-shaped member that is inserted into an outer cylinder that is the main body 35 of the operating portion 32, the rotor 31 and the joint portion are provided at the tip thereof, and the knob 34 for rotating operation is provided at the other end. Is provided. A grip portion 36 is provided for holding the main body 35, and a washer 37 is also interposed between the operation portion 32 and the knob 34.
【００２１】回転部材３３の先端には凹状のソケット３
８が継手４０の一部として設けられており、このソケッ
ト３８は、球状の凹部として形成されかつその壁面に軸
方向溝３９を軸回りに１８０度間隔で形成した構造を有
する（図７参照）。ソケット３８に対する相手係合部４
１は、頭部４１ａを球状とし、かつ球状頭部４１ａの直
径方向に継手部材４２の軸方向と直交する方向のピン４
１ｂを設けたものとなる。継手部材４２は両頭であり、
回転子３１との係合側にも球状の頭部４１ｃと継手部材
４２の軸方向と直交方向のピン４１ｄとを有する相手係
合部４１′を備えている。なお、入力側と出力側のピン
４１ｂ、４１ｄは、さらに軸回りに９０度位相をずらせ
た配置を採っている。A concave socket 3 is provided at the tip of the rotating member 33.
8 is provided as a part of the joint 40, and the socket 38 has a structure in which it is formed as a spherical concave portion and axial grooves 39 are formed on its wall surface at intervals of 180 degrees around the axis (see FIG. 7). . Mating engagement portion 4 for socket 38
1 is a pin 4 in which the head portion 41a is spherical and the diameter direction of the spherical head portion 41a is orthogonal to the axial direction of the joint member 42.
1b is provided. The joint member 42 is double-headed,
A mating engagement portion 41 ′ having a spherical head 41 c and a pin 41 d in a direction orthogonal to the axial direction of the joint member 42 is also provided on the engagement side with the rotor 31. The pins 41b and 41d on the input side and the output side are arranged so that the phases are further shifted by 90 degrees around the axis.
【００２２】回転子３１の基端の側にも、ソケット３
８′と軸方向溝３９′とが設けてあり、回転子３１の先
端側には、別体のドライバービット４４１ 、４４２ …
を着脱交換可能にする着脱用ソケット４３が設けられて
いる。着脱用ソケット４３は角型断面形状を有し（図６
（ｃ）参照）、ビット４４１ …の基部を嵌めて安定に
保持し得るような嵌合関係を持っている。ただ嵌めただ
けでは抜け出す恐れがあるので、回転子３１の外周にソ
ケット角部と重なる深さに溝４５を設け、そこにＯ−リ
ングで示した弾性材４９を嵌めて重なり部４６からソケ
ット内に露出させ、ビットの基部に接して弾性保持する
保持装置を設けている。The socket 3 is also provided on the base end side of the rotor 31.
8 'and the axial groove 39' is provided with a can, the front end side of the rotor 31, the driver bit 44 1 separate, 44 2 ...
An attaching / detaching socket 43 is provided to enable detachment / replacement. The detachable socket 43 has a rectangular cross section (see FIG. 6).
(See (c)), and the fitting relationship is such that the bases of the bits 44 1 can be fitted and stably held. Since there is a risk of slipping out by simply fitting it, a groove 45 is provided on the outer periphery of the rotor 31 at a depth overlapping the corner portion of the socket, and an elastic material 49 indicated by an O-ring is fitted therein to fit the inside of the socket from the overlapping portion 46. A holding device that is exposed to the outside and is elastically held in contact with the base of the bit is provided.
【００２３】このような実施例２のものでは、本体３５
に継手４０を設けた部分において、４５度起き上がり、
内角が１３５度と実施例１よりも５度大きく曲げること
が可能になっている。曲がり部を溶接（２４）で形成す
る点及び本体先端方に液抜きのための小孔２５を有する
点は実施例１のものと同様であるので、夫々の符号を援
用しておく。従って、実施例２では回転子３１にさらに
別体のドライバービット４４１ …を装着するので、そ
の分ダイレクト感が減ずることは止むを得ないが、着脱
の容易さにおいて実施例１の場合よりも数等勝るもので
あるので交換の容易さが特徴になる。In the second embodiment, the body 35
In the part where the joint 40 is provided, rise up 45 degrees,
The interior angle is 135 degrees, which means that it can be bent by 5 degrees larger than that of the first embodiment. The point of forming the bent portion by welding (24) and the point of having the small hole 25 for draining the liquid at the tip of the main body are the same as those of the first embodiment, and thus the respective reference numerals are used. Therefore, in the second embodiment, since the separate driver bit 44 1 ... It is easy to replace because it is superior in number.
【００２４】実施例２の医療用ドライバー３０では、回
転子３１を本体先端に嵌め込み、継手部材４２の相手係
合部４１′とソケット３８′とを正しく係合させるとと
もにこの係合状態を維持するために止め具４７を本体先
端部のねじ穴に螺じ込み、先端を回転子３１の位置決め
溝４８に突き出させておく。このような実施例２の医療
用ドライバー３０を用いると、図８（ａ）に示すドライ
バービット４４１ による螺じ込み操作が行なえること
に加えて、骨用インプラント４４２ それ自体を骨に螺
じ入れる場合にも、それが着脱用ソケット４３に適合し
た嵌め合い基部を持っている場合には好適に使用するこ
とができる。In the medical driver 30 of the second embodiment, the rotor 31 is fitted to the tip of the main body so that the mating engaging portion 41 'of the joint member 42 and the socket 38' are properly engaged and the engaged state is maintained. For this purpose, the stopper 47 is screwed into the screw hole at the tip of the main body, and the tip is projected into the positioning groove 48 of the rotor 31. With medical driver 30 in such an embodiment 2, in addition to perform the operation narrowing Ji screw by the driver bit 44 1 shown in FIG. 8 (a), threaded bone implant 44 2 itself to the bone It can also be used favorably in the case of stowing, as long as it has a fitting base adapted to the socket for attachment / detachment 43.
【００２５】[0025]
【発明の効果】本発明は以上の如く構成され、かつ作用
するものであるから、回転部材の軸方向に対して回転子
軸を１３５度若しくはその他所望の角度交差した関係に
置き、かつ１３５度ドライバーにおいてもスムーズな操
作性を得ることができるので、従来のような異音発生や
摩耗による金属粉の排出という問題が解消されるという
効果を奏する。Since the present invention is constructed and operates as described above, the rotor shaft is placed in a relationship where the rotor shaft crosses the axial direction of the rotary member by 135 degrees or any other desired angle, and 135 degrees. Since a smooth operability can be obtained even in the driver, it is possible to solve the problem of the generation of the abnormal noise and the discharge of the metal powder due to the abrasion as in the conventional case.
【図１】本発明に係る医療用ドライバーの実施例１を示
す斜視図。FIG. 1 is a perspective view showing a first embodiment of a medical driver according to the present invention.
【図２】同上の縦断面図と要部拡大図。FIG. 2 is a vertical sectional view and an enlarged view of a main part of the same.
【図３】（ａ）継手部材の正面端面図。 （ｂ）同じく側面図。FIG. 3 (a) is a front end view of the joint member. (B) Similarly, a side view.
【図４】（ａ）ある回転子の使用例を示す断面図。 （ｂ）他の回転子の使用例を示す断面図。FIG. 4A is a sectional view showing a usage example of a certain rotor. (B) Sectional drawing which shows the usage example of another rotor.
【図５】本発明の実施例２を示す斜視図。FIG. 5 is a perspective view showing a second embodiment of the present invention.
【図６】（ａ）同上の縦断面図。 （ｂ）本体先端方の側面図。 （ｃ）回転子の正面端面図。FIG. 6 (a) is a vertical sectional view of the same. (B) A side view of the front end of the main body. (C) A front end view of the rotor.
【図７】（ａ）継手を分解して示す断面図。 （ｂ）回転子の側面図。FIG. 7 (a) is a sectional view showing the joint in an exploded manner. (B) A side view of the rotor.
【図８】（ａ）或る回転子の使用例を示す断面図。 （ｂ）本発明のものの他の使用例を示す断面図。FIG. 8A is a sectional view showing a usage example of a certain rotor. (B) Sectional drawing which shows the other example of use of the thing of this invention.
１０、３０ 医療用ドライバー １１１ 、１１２ 、３１回転子 １２、３２ 操作部 １３、３３ 回転部材 １８、１８′、３８、３８′ ソケット ２０、４０ 継手 ２１、４１ 相手係合部 ２２、４２ 継手部材10, 30 Medical driver 11 1 , 112 2 , 31 Rotor 12, 32 Operating part 13, 33 Rotating member 18, 18 ', 38, 38' Socket 20, 40 Joint 21, 41 Joint engaging portion 22, 42 Joint Element
Claims (5)
部材を有する操作部とから成り、回転部材の軸に対して
回転子軸を所望の角度交差した関係とし、かつ継手によ
り回転子と回転部材とを接続した医療用ドライバーであ
って、継手として、回転子と回転部材の両端にソケット
を夫々設けるとともに、夫々のソケットと係合すること
によって回転力を伝達可能な両頭の相手係合部を有する
継手部材を組み合わせたことを特徴とする医療用ドライ
バー。1. A rotor and an operating portion having a rotating member for applying a rotating force to the rotor, wherein the rotor shaft has a relationship in which the rotor shaft intersects the shaft of the rotating member at a desired angle, and a rotor is provided by a joint. And a rotating member are connected to each other, and a socket is provided at each end of the rotor and the rotating member as a joint, and a two-headed counterpart capable of transmitting a rotational force by engaging with each socket. A medical driver comprising a joint member having a joint portion.
材の両端に設けて両頭とし、夫々のボールポイントレン
チに係合可能なソケットを回転子の軸端と回転部材の軸
端とに設けて２組とした構成を有する請求項１記載の医
療用ドライバー。2. The joint comprises a ball point wrench provided at both ends of the joint member to form a double-headed structure, and sockets engageable with the respective ball point wrenches are provided at a shaft end of the rotor and a shaft end of the rotary member. The medical driver according to claim 1, which has a constitution as a set.
頭部の直径方向に継手部材の軸と直交する方向のピンを
設けた継手部材と、球状頭部を受け入れる凹部を有し、
かつ凹部壁面にピンの係合が可能な軸方向溝を設けたソ
ケットとを組み合わせたもの２組から成る請求項１記載
の医療用ドライバー。3. The joint includes a joint member having a spherical head, and a pin provided in a diameter direction of the spherical head in a direction orthogonal to the axis of the joint member, and a recess for receiving the spherical head.
The medical driver according to claim 1, comprising two sets in which a socket having an axial groove in which a pin can be engaged is provided on a wall surface of the recess.
に有している請求項１〜３のいずれかに記載の医療用ド
ライバー。4. The medical driver according to claim 1, wherein the rotor integrally has a driver portion at its tip.
ットを着脱交換可能にする着脱用ソケットを有している
請求項１〜３のいずれかに記載の医療用ドライバー。5. The medical driver according to any one of claims 1 to 3, wherein the rotor has a detachable socket at a tip thereof for detaching and exchanging a separate driver bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001205284A JP2003019142A (en) | 2001-07-05 | 2001-07-05 | Medical driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001205284A JP2003019142A (en) | 2001-07-05 | 2001-07-05 | Medical driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003019142A true JP2003019142A (en) | 2003-01-21 |
Family
ID=19041624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001205284A Pending JP2003019142A (en) | 2001-07-05 | 2001-07-05 | Medical driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003019142A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007504895A (en) * | 2003-09-10 | 2007-03-08 | ウォーソー・オーソペディック・インコーポレーテッド | Apparatus and method for inserting a spinal implant |
| JP2007252927A (en) * | 2006-03-23 | 2007-10-04 | Symmetry Medical Inc | Angled surgical driver |
| JP2010240425A (en) * | 2009-04-07 | 2010-10-28 | Biedermann Motech Gmbh & Co Kg | Tool for use with bone anchor, kit equipped with bone anchor and module type tool |
| EP2460485A3 (en) * | 2005-08-16 | 2014-03-19 | Synthes GmbH | Headless compression screw with integrated reduction-compression instrument |
| JP2022515137A (en) * | 2018-12-20 | 2022-02-17 | メダクタ・インターナショナル・ソシエテ・アノニム | Surgical screwdriver |
-
2001
- 2001-07-05 JP JP2001205284A patent/JP2003019142A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9113976B2 (en) | 2001-12-04 | 2015-08-25 | DePuy Synthes Products, Inc. | Headless compression screw with integrated reduction-compression instrument |
| JP2007504895A (en) * | 2003-09-10 | 2007-03-08 | ウォーソー・オーソペディック・インコーポレーテッド | Apparatus and method for inserting a spinal implant |
| EP2460485A3 (en) * | 2005-08-16 | 2014-03-19 | Synthes GmbH | Headless compression screw with integrated reduction-compression instrument |
| JP2007252927A (en) * | 2006-03-23 | 2007-10-04 | Symmetry Medical Inc | Angled surgical driver |
| JP2013046787A (en) * | 2006-03-23 | 2013-03-07 | Symmetry Medical Inc | Angled surgical driver |
| JP2010240425A (en) * | 2009-04-07 | 2010-10-28 | Biedermann Motech Gmbh & Co Kg | Tool for use with bone anchor, kit equipped with bone anchor and module type tool |
| US9149308B2 (en) | 2009-04-07 | 2015-10-06 | Biedermann Technologies Gmbh & Co. Kg | Tool for use with a bone anchor, in particular for spinal surgery |
| JP2022515137A (en) * | 2018-12-20 | 2022-02-17 | メダクタ・インターナショナル・ソシエテ・アノニム | Surgical screwdriver |
| JP7186300B2 (en) | 2018-12-20 | 2022-12-08 | メダクタ・インターナショナル・ソシエテ・アノニム | surgical screwdriver |
| AU2019409329B2 (en) * | 2018-12-20 | 2022-12-08 | Medacta International Sa | Surgical screwdriver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI527556B (en) | Tool for use with a bone anchor, in particular for spinal surgery | |
| US7188554B2 (en) | Medical fastener and tool | |
| US8353230B2 (en) | Wrench with wrench head having a planar overhang | |
| JP2001347468A (en) | Ratchet wrench with rotatable head | |
| JP2010521265A (en) | Screwdriver and screw member applied to it | |
| US20090145268A1 (en) | Hybrid low profile and standard ratchet system | |
| JP5801470B2 (en) | Cutting bar shank configuration | |
| US6092441A (en) | Multiple fitting | |
| KR100797573B1 (en) | Modular tool connection assembly | |
| US7370560B2 (en) | Ratchet wrench | |
| JP2021166708A (en) | Torque limiting ratcheting handle for medical instrument | |
| JP2006068891A (en) | Combination of fastener and fastener driver, fastener, and fastener driver | |
| JP2021166707A (en) | Ratcheting handle for medical instrument | |
| JP2017087413A (en) | Shaft center retainer of high speed rotary wrench and high speed rotary wrench with application of the same | |
| JP2003019142A (en) | Medical driver | |
| EP3332735B1 (en) | Surgical instrument for dental implant | |
| US20130152747A1 (en) | Polyaxial ratchet tool | |
| US20120240731A1 (en) | Tool extension | |
| JP2021523022A (en) | Screwdriver tool for transmitting two set torques | |
| JP5393430B2 (en) | Socket wrench | |
| JP2007100874A (en) | Member joint structure | |
| JP2007181891A (en) | Cutting tool exchange type rotary tool, exchange cutting tool used for cutting tool exchange type rotary tool and holder | |
| JP7470692B2 (en) | Surgical screwdriver | |
| JP2005088104A (en) | Torque control nut, torque control method and socket for power wrench | |
| JP5031449B2 (en) | Joint structure of cleaning tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041130 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050329 |